Watch live: Dr. Oz testifies at Senate confirmation hearing

Mehmet Oz, the celebrity physician and television host, will testify before the Senate Finance Committee on Friday for his confirmation hearing to be head of the Centers for Medicare and Medicaid Services (CMS).

If confirmed, Oz would take the helm of a $1.5 trillion agency. It sets payment rates for doctors, hospitals and insurers, while also overseeing Medicare, Medicaid, the Children’s Health Insurance Program and the Affordable Care Act — programs that provide cov...